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Which of the following orders are correct as per the properties mentioned against each?
(i) \( \mathrm{As}_{2} \mathrm{O}_{3}\mathrm{SiO}_{2}\mathrm{P}_{2} \mathrm{O}_{3}\mathrm{SO}_{2} \quad \) Acid strength.
(ii) \( \mathrm{AsH}_{3}\mathrm{PH}_{3}\mathrm{NH}_{3} \quad \) Enthalpy of vapourisation.
\( \mathrm{P} \)
(iii) \( \mathrm{S}\mathrm{O}\mathrm{Cl}\mathrm{F} \quad \) More negative electron gain enthalpy.
W
(iv) \( \mathrm{H}_{2} \mathrm{O}\mathrm{H}_{2} \mathrm{~S}\mathrm{H}_{2} \mathrm{Se}\mathrm{H}_{2} \mathrm{Te} \quad \) Thermal stability.
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